Log sawing machine



April 29, 1947. B. E. wlL'soN ETAI. 2,419,751

Los sAwING MACHINE Filed Nov. 9, 1945- 2 Sheets-Sheet l .QRBERT M 15:1 VERCOUL,

April 29, 1947. B. E. wlLAsoN Erm. 2,419,751

Los sAwING MACHINE 2 Sheets-Sheet 2 Filed Nov. 9, 1945 MINES,-

I u velltori HRBERT .P1/ 152 vR coob,

v i 'V Muff / Attorneys Patented pr. 29, 1947 'il'v C LOG SAWING MACHINE Burton E. Wilson and Herbert W. Savercool, Greenville, Calif.

Application November 9, 1945, serial No. 627,617

Claims.

Thel present invention relates to new and useful improvements in log sawing machines and more particularly to a machine of this character for sawing oating logs in a mill pond.

An important object of the present invention is to provide a log sawing machine of this character embodying means for collecting and removing the sawdust during the sawing operation whereby to prevent the sawdust from settling on the bottom of the pond and which would eventually ll the pond.

A further object of the invention is to provide a log sawing machine of this character in which a power driven chain saw is provided and which acts upon the log to hold the same against a work or platform at the edgeof the mill pond during the sawing operation,

A still further object of the invention is to provide a sawdust collecting throat member in which the inner end of the saw operates together with Ameans for yieldably holding the throat against the side of the log to compensate for irregularities in the contour of the log.

A still further objectof the invention isto provide an apparatus of this character of simple and practical construction, which is eicient and reliable in operation, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended,

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational View.

Figure 2 is a top plan view.

Figure 3 is an enlarged longitudinal sectional View through the front end of the sawdust conveyor and sawdust collecting throat attached thereto.

Figure 4 is a side elevational view of the sawdust collecting throat.

Figure 5 is a front elevational view thereof,

Referring now to the drawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a work, bulkhead or other suitable supporting structure positioned at the edge of a mill pond or other body of water and which forms a platform on which is mounted a base 6 for a stand 'I having an electric motor or other power plant 8 mounted thereon. A reduction gear housing 9 is supported on the base 6 having a shaft I0 journaled therein and projecting from opposite sides of the housing, one end of the shaft being driven by a belt II from themotor 8 while a sprocket I2 is secured to the other end of the shaft.

The base 6 is supported on the structure 5 by means of a pillow block or the like I3.

A saw frame I4 projectsforwardly from the base 6 and includes longitudinally extending frame members I5 having bearings I6 at the front ends thereof in which a transversely extending shaft II is journaled.

A ller plate IB for a conventional type of chainj saw I9 has its rear end pivoted on the shaft Il and to one end of the shaft II is secured a1 sprocket 2IJ for driving the saw by means of a. chain 2I extending over the sprocket I2. The front end of the filler plate I8 is supported for vertical adjustment by means of a bracket 22 to' which a cable 23 is attached which extends upwardly over a pulley 244 at the outer end of a beam 25 supported on posts 26 Vrising from the base 6.

The cable or rope 23 is wound on a drum (not shown) at the junction of the beam 25 and post 26 and secured against unwinding movement by means of a ratchet 2l and dog 28 in the usual manner.

The rear end of the saw I8 is positioned in a sawdust collecting throat 29 which is open at its front end and tapers toward its rear end, the sides of the throat being formed with horizontally extending slots 30 extending rearwardly from the front edge thereof for sliding the throat forwardly and rearwardly on the shaft I1, the ends of @e shaft 'working in the slots 30. Flexible shields 3I are connected to the upper and lower edges of the slots 38 to substantially close the slots and to prevent sawdust from being discharged through the sides of the throat.

A tubular extension 32 is formed at the rear end of the throat 29 and in which is slidably received the front end of an auger or screw conveyor housing 33 having an auger or screw conveyor 34 operatively mounted therein with a cutter 34a at its front end.

The screw 34 is operated by means of a shaft 35 journaled in the rear end of the housing 33 and driven by means of a belt 36 from an electric motor or other type of power plane 31 mounted on the rear end of the base 6. A rearwardly inclined discharge pipe 38 extends from the rear end of the conveyor housing 33 through which sawdust is discharged from the conveyor for suitable disposal.

The front end of the throat 29 is flared as indicated at 39 and is yieldably held against the side of a log 49 to conform to irregularities in the contour thereof by means of a pair of coil springs 4| mounted on spaced parallel rods 42 positioned at opposite sides of the throat.

A pair of tubular guides 43 rise from the throat 29 in which the rods 42 are slidably received and against which one end of the coil springs 4I abut. The rear ends of the coil springs engage collars 44 secured to 'the rearportions of the rods 42. Accordingly, the springs 4| exert a forward pressure on the throat 29 to yieldably hold the same against the side of the log.

The throat 29 may be manually moved rearwardly out of engagement with the log lay-means of a lever 45 pivoted at its lower end on thebase 6 and connected to the throat by means of a link 46.

In the operation of the device the flog 4| :is floated against the front edge of the supporting structure and the saw I9 lowered into Aposition for .cutting 'the log "in'to desired length. The throat .29 is projectedfforwardly by the .springs 4I against thelog and therlog isurged against thethroat by the cutting action ofthe saw. During the operation ofthe saw thesawdustis drawn rearwardly intothe throat andiis conveyedfrom A the rear portion of the vthroat away from the pondby means ofthe screw conveyor 34.

What is claimedis:

"1. A saw machine .comprising iin .combination asupporting structurejpositi'oned'at the edge of abody ofwateron which a'logto'be sawed is floated, a power driven saw mounted on the structure and operated in a manner to `drawthe logiagainst the structure, vand'means mounted on thestructureatLthe inner 'end'of the saw to collect :and remove sawdust 'produced during .the sawing action.

F2. Asaw 'machine comprising in 'combination a supporting :structure Ypositioned at the edge `of :a1-body or" `water onwhich a log to be sawedis floated, a power driven saw mounted on "the structure-and `operated in amanner to draw the log against the structure, and a Asawdust'con- .-asupporting structure positioned at the edge of a body of water on which a log to be sawed is `Afloated, apower driven saw mounted on the structure and operated in a manner to draw the log vagainst the structure, a slidably mounted sawdust collecting throat at the inner end of the saw, -yieldable means urging the throat against the .=log,and a conveyor for the sawdust connected to the throat.

5. A saw machine .comprising ,in .combination a supporting structure positioned at .theedgeof abody of water on which a 10g tolbesawed is iioate'd, a power driven saw mounted on theistructure and operated in a manner 'to draw the log against. the structure, a slidably mounted sawdust collectinglthroat at the 'inner end of the saw, yie1dable means urging the .throat .against the log, 'and an auger 'type conveyor connected tothe throat 'for removing sawdust collectedjin the throat.

BURTONl EIVVILSON.

'I-lIERBERT'W. SAVERCOOL.

` REFERENCES CITED The following references are of record inthe le of this patent:

LUNITED STAT-ES PATENTS Number vName Date `951,510 Muir Mar.\8, 1910 1,725,495 'Vogler. -Aug. 20, -1929 189,864 .Knight Apr. 24, -1877 Re. 20,687 Grozier Apr. 5, ,1938 

